606
FNCA52 TJSJ 020839
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
439 AM AST MON MAR 2 2026
DISCUSSION
THE KBDI REMAINS ABOVE CRITICAL FIRE WEATHER THRESHOLDS IN CABO
ROJO, AND ABOVE CRITICAL VALUES IN GUANICA AND CAMP SANTIAGO.
BREEZY E TO ESE WINDS WILL CONTINUE UP TO AT 18 TO 23 MPH WITH
HIGHER GUSTS AND SEA BREEZE VARIATIONS. POCKETS OF MOISTURE WILL
MOVE OVER THE REGION DURING THE MORNING AND LATE AFTERNOON, WHICH
COULD POTENTIALLY BRING SOME SHOWERS OVER THE MORE VULNERABLE
AREAS. HOWEVER IN BETWEEN THESE PATCHES A PATCH OF DRIER AIR WILL
MOVE OVER THE REGION LATE MORNING INTO THE AFTERNOON, PROMPTING A
DECREASE IN RH VALUES TO CRITICAL LEVELS AT TIMES. THIS WILL
MAINTAIN A MODERATE FIRE DANGER RISK. FOLLOWING THE MOVEMENT OF
THE PATCHES OF MOISTURE WE WILL CONTINUE MONITORING THE SITUATION
THIS MORNING FOR A POSSIBLE HIGH FIRE DANGER RISK.
PRZ014-030845-
SOUTHEAST COASTAL PLAINS-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 60 0 30
TEMP (24H TREND) 87 (+2) 69 (-2) 87
RH % (24H TREND) 44 (-12) 88 (-1) 45
WIND 20FT/EARLY(MPH) E 18 G24 E 14 G18 E 19 G25
WIND 20FT/LATE(MPH) E 18 G24 E 14 G18 E 19 G25
MIXING HGT(FT-AGL/MSL)5540 6100
TRANSPORT WND (MPH) E 23 E 24
VENT RATE (KT-FT) 110800 128100
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-030845-
SOUTHERN HILLS-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 20
TEMP (24H TREND) 83 (+3) 66 (-2) 84
RH % (24H TREND) 57 (-3) 95 (+2) 56
WIND 20FT/EARLY(MPH) E 16 E 13 E 16
WIND 20FT/LATE(MPH) E 16 E 13 E 16
MIXING HGT(FT-AGL/MSL)6250 7320
TRANSPORT WND (MPH) E 22 E 23
VENT RATE (KT-FT) 118750 146400
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-030845-
NORTH COASTAL PLAINS-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 30
TEMP (24H TREND) 86 (0) 68 (-2) 86
RH % (24H TREND) 56 (+1) 97 (0) 57
WIND 20FT/EARLY(MPH) E 18 G21 E 14 E 24
WIND 20FT/LATE(MPH) E 18 G21 E 14 E 24
MIXING HGT(FT-AGL/MSL)6560 6210
TRANSPORT WND (MPH) SE 21 E 23
VENT RATE (KT-FT) 118080 124200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-030845-
NORTHERN HILLS-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 20
TEMP (24H TREND) 86 (+1) 66 (-1) 86
RH % (24H TREND) 54 (+2) 95 (-3) 55
WIND 20FT/EARLY(MPH) E 17 E 12 E 21
WIND 20FT/LATE(MPH) E 17 E 12 E 21
MIXING HGT(FT-AGL/MSL)7180 7890
TRANSPORT WND (MPH) SE 17 E 21
VENT RATE (KT-FT) 107700 142020
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-030845-
WEST COAST-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 40
TEMP (24H TREND) 88 (+1) 68 (-1) 88
RH % (24H TREND) 54 (-2) 92 (0) 54
WIND 20FT/EARLY(MPH) E 18 E 14 E 19 G22
WIND 20FT/LATE(MPH) E 18 E 14 E 19 G22
MIXING HGT(FT-AGL/MSL)5830 7390
TRANSPORT WND (MPH) E 16 E 16
VENT RATE (KT-FT) 81620 103460
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-030845-
EASTERN INTERIOR-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 40
TEMP (24H TREND) 84 (+2) 66 (-3) 84
RH % (24H TREND) 60 (0) 97 (0) 60
WIND 20FT/EARLY(MPH) E 16 E 14 E 17
WIND 20FT/LATE(MPH) E 16 E 14 E 17
MIXING HGT(FT-AGL/MSL)5940 6330
TRANSPORT WND (MPH) SE 22 E 22
VENT RATE (KT-FT) 112860 120270
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-030845-
LUQUILLO MOUNTAIN RANGE-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50
TEMP (24H TREND) 79 (+2) 65 (-3) 79
RH % (24H TREND) 67 (+1) 98 (+1) 66
WIND 20FT/EARLY(MPH) E 14 E 12 E 14 G17
WIND 20FT/LATE(MPH) E 14 E 12 E 14 G17
MIXING HGT(FT-AGL/MSL)5340 4890
TRANSPORT WND (MPH) E 23 E 23
VENT RATE (KT-FT) 106800 97800
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-030845-
CENTRAL MOUNTAIN RANGE-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 50 0 20
TEMP (24H TREND) 83 (+3) 63 (-2) 84
RH % (24H TREND) 56 (-1) 96 (+1) 55
WIND 20FT/EARLY(MPH) E 12 E 10 E 12
WIND 20FT/LATE(MPH) E 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)7460 8750
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 111900 140000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-030845-
CAYEY MOUNTAIN RANGE-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 40
TEMP (24H TREND) 79 (+2) 66 (-1) 79
RH % (24H TREND) 69 (+4) 98 (-1) 67
WIND 20FT/EARLY(MPH) E 13 E 11 E 14
WIND 20FT/LATE(MPH) E 13 E 11 E 14
MIXING HGT(FT-AGL/MSL)5500 5500
TRANSPORT WND (MPH) E 23 E 24
VENT RATE (KT-FT) 110000 115500
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-030845-
VIEQUES-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 50
TEMP (24H TREND) 85 (0) 71 (-2) 85
RH % (24H TREND) 59 (+3) 89 (0) 59
WIND 20FT/EARLY(MPH) E 18 G22 E 18 G23 E 18 G23
WIND 20FT/LATE(MPH) E 18 G22 E 18 G23 E 18 G23
MIXING HGT(FT-AGL/MSL)4260 4320
TRANSPORT WND (MPH) E 23 E 26
VENT RATE (KT-FT) 85200 99360
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-030845-
CULEBRA-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40
TEMP (24H TREND) 86 (+1) 73 (-2) 86
RH % (24H TREND) 59 (0) 89 (+2) 59
WIND 20FT/EARLY(MPH) E 18 G22 E 18 G23 E 18 G23
WIND 20FT/LATE(MPH) E 18 G22 E 18 G23 E 18 G23
MIXING HGT(FT-AGL/MSL)4380 4260
TRANSPORT WND (MPH) E 23 E 25
VENT RATE (KT-FT) 87600 93720
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-030845-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 20
TEMP (24H TREND) 88 (+2) 69 (-2) 89
RH % (24H TREND) 45 (-10) 87 (+1) 43
WIND 20FT/EARLY(MPH) E 24 G31 E 18 G23 E 26 G34
WIND 20FT/LATE(MPH) E 24 G31 E 18 G23 E 26 G34
MIXING HGT(FT-AGL/MSL)5920 6640
TRANSPORT WND (MPH) E 26 E 24
VENT RATE (KT-FT) 136160 139440
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-030845-
SAINT THOMAS AND SAINT JOHN-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 58 (-2) 89 (+4) 56
WIND 20FT/EARLY(MPH) E 19 G23 E 19 G23 E 19 G24
WIND 20FT/LATE(MPH) E 19 G23 E 19 G23 E 19 G24
MIXING HGT(FT-AGL/MSL)4280 4120
TRANSPORT WND (MPH) E 25 E 26
VENT RATE (KT-FT) 94160 94760
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-030845-
ST CROIX-
439 AM AST MON MAR 2 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 86 (+1) 72 (-2) 86
RH % (24H TREND) 61 (+2) 87 (-1) 59
WIND 20FT/EARLY(MPH) E 18 G22 E 18 G23 E 19 G24
WIND 20FT/LATE(MPH) E 18 G22 E 18 G23 E 19 G24
MIXING HGT(FT-AGL/MSL)4520 4690
TRANSPORT WND (MPH) E 25 E 26
VENT RATE (KT-FT) 99440 107870
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page